The only dinosaurs capable of intimidating a Spinosaurus are Brachiosaurus and Triceratops.Not who you want training your dinosaurs. Spinosaurus is a fearless predator and will not flee from other carnivores, even if it loses a confrontation to them. Spinosaurus engaging their own kind pretty much will fight seldom times and whack their mouths or show off their size for dominance in their territory, it's also proven that Spinosaurus are very persistant and will attack each other to the bitter end until the contender is finally ridden of. Spinosaurus when together seem to wait it out when they want to fight their own kind and in fact they seem to work out as teams pretty well, no matter how the numbers when it comes to hunting. In JPOG the Spinosaurus is the largest carnivore in the game and the only theropod dinosaur that shows lack of fear between its own species, this indicates that Spinosaurus amongst its own kind has a tolerance level as putting two spinosaurs within the same enclosure they seldom times fight for territory much of less than go into a death fight.
If it the meeting up against any other large predator (with the exception of Allosaurus unless if modded) the Spinosaurus does the same manner to drive contenders away and when they don't the Spinosaurus will show off its size and terrifying roar to its advantage. The two can coexist briefly but sooner or later, they will end up competing for territory very violently. Whenever meeting a Tyrannosaurus it tends to whack its mouth in a territorial manner to drive it away and when it doesn't it engages in a death duel. The Spinosaurus whenever coming out of its' hatchery is almost always inspecting for other dinosaurs to claim territory. It acts out pretty much as a lone hunter as with most of the large predators in the game. It has the ability to kill any dinosaur (with the exception of Brachiosaurus due to its immense size), and it wishes to fight or eat if it has the strength or courage. it is the largest and most dominant Theropod of all of InGens creations. Standing at 22ft(6.7m) tall at the head, and 50ft(15.2m) long, weighing a minimum of 6 tons.